109919251764 has 54 divisors (see below), whose sum is σ = 323214947874. Its totient is φ = 31405500000.

The previous prime is 109919251721. The next prime is 109919251817. The reversal of 109919251764 is 467152919901.

It is a happy number.

109919251764 is a `hidden beast` number, since 109 + 9 + 19 + 2 + 517 + 6 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 109117908900 + 801342864 = 330330^2 + 28308^2 .

It is a super-2 number, since 2×109919251764² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 109919251764.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 31154487 + ... + 31158014.

Almost surely, 2^109919251764 is an apocalyptic number.

109919251764 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

109919251764 is an abundant number, since it is smaller than the sum of its proper divisors (213295696110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

109919251764 is a wasteful number, since it uses less digits than its factorization.

109919251764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62312525 (or 62312513 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 54.

The spelling of 109919251764 in words is "one hundred nine billion, nine hundred nineteen million, two hundred fifty-one thousand, seven hundred sixty-four".